spine

The Simple English Wikipedia has an article on:

Spine

Pronunciation

• (UK) (US) IPA ^(key): /spaɪn/

• Audio (UK)

  (file)

Noun

Singular spine

Plural spines

1. (countable) Your spine is the set of bones down the middle of your back.
2. (countable) Spines are sharp, pointy parts on an animal or a plant.
3. (countable) The spine of a book is the narrow, hard part that joins the pages together.